Thursday, June 28, 2012

A genetic study of thousands of specimens of sharks and rays has
uncovered scores of potential new species and is fuelling biologists’
debates over the organisation of the family tree of these animals. The
work also raises the possibility that some species are even more
endangered than previously thought.

Gavin Naylor, a biologist at the College of Charleston in South
Carolina, and his colleagues sequenced samples from 4,283 specimens of
sharks and rays as part of a major effort to fill the gaps. The team
found 574 species, of which 79 are potentially new, they report in theBulletin of the American Museum of Natural History1.

Naylor says that he was “flabbergasted” by the result,
especially because the sequencing covered only around half of the
roughly 1,200 species thought to exist worldwide.

This is even more evidenceof how little we know about sharks and the ocean ecosystem in general. I'm happy that we at Shark Diver can do our small part helping out the researchers by providing our pictures for the photo ID database of the Great White Sharks at Isla Guadalupe.

About Shark Diver.
As a global leader in commercial shark diving and conservation initiatives Shark Diver has spent the past decade engaged for sharks around the world. Our blog highlights all aspects of both of these dynamic and shifting worlds. You can reach us directly at sharkcrew@gmail.com.